Improvement in car-frames



R. M. C. PARKER.

Car-Frames.

No. 134,701; Patented Jan. 7, 1873.

NITED STATES PATENT OFFICE.

RICHARD M. O. PARKER, OF MEMPHIS, TENNESSEE.

IMPROVEMENT IN CAR-FRAM ES.

Specification forming part of Letters Patent No. 134,701, dated January7, 187 3.

To all whom it may concern:

Be it known that I, RICHARD M. O. PAR- KER, of Memphis, in the county ofShelby and State of Tennessee, have invented a certain Improvement inGar-Frames, of, which the following is a specification:

Nature and Objects of the Invention.

This invention consists in the employment or use of two or more pullingand truss rods passing over the bolsters and nndercentral truss-beams,and attached to bars or plates in front of the draw-head timbers. Theprimary object of the invention is to furnish longitudinal and verticalsupport to the draw-head timbers, and to the center of the car. The

rods are made in sections, unitedby adjusting-links so as to beapplicable to any car, and to facilitate their application, and toassist in tightening or straining the rods, as hereinafter set forth.

Description of the Drawing.

Figure 1 is an under-side view of -the bottom or body frame of a railwaycarillustratin g this invention. Fig. 2 is a side view offthe same,partly in section. Fig. 3 is a central transverse section thereof.

General Description.

1n carrying out this invention, the improve ment may be applied to anyordinary carframe, the draw-head timbers a being constructed orfurnished with downward projections forming inclined shoulders l beneaththe timbers at their front ends. On these shoulders are appliedtransverse bars or plates, b, with projecting perforated ends 2, whichreceive the ends of longitudinal rods 0 and screwnuts 3, or theirequivalents, thereon. The object of these rods is to support thedraw-head timbers, and also the center of the car, in a superior manner.The rods extend from beneath truss-beams d in the center,'over thebolsters or bolster timbers e, and thence to the end plates 1). Theythus distribute the vertical support of the bolsters, and at the sametime give longitudinal support to the drawhead timbers, and greaterrigidity and strength to the entire structure, serving especially toprevent and correct the loosening of joints by shrinkage and jar.

To adapt these rods to different frames, and to facilitate theirapplication, each rod is made in two sections, furnished at their innerends with heads or nuts 4, which are embraced by adjusting-links f,between the truss-beams. These links are composed of perforated endplates or heads, 5, and pairs of long-threaded- Claim.

The following is claimed as new:

i The pulling and truss rods 0 and their end plates 1), with or withoutthe adjusting-links f, applied to a car-frame, substantially as hereindescribed, to support the draw-head timbers and the center of the car,as set forth.

RICHARD M. O. PARKER. Witnesses:

A. J. KNAPP,

JAG. BRUST.

